OPA1662
OPA1664
SBOS489 –DECEMBER 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted.
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD
50
50
45
40
35
30
25
20
15
10
5
RF = 2 kW
RI = 2 kW
VOUT = 100 mVPP
+15 V
45
+15 V
OPA1662
-15 V
G = +1 V/V
RS
RS
OPA1662
40
CL
RL
CL
35
30
25
20
15
10
5
-15 V
RS = 0 W
RS = 25 W
RS = 50 W
RS = 0 W
RS = 25 W
RS = 50 W
VOUT = 100 mVPP
G = −1 V/V
0
0
0
0
0
50
100
150
200
250
300
350
400
0
50
100
150
200
250
300
350
400
Capacitance (pF)
Capacitance (pF)
G019
G020
Figure 25.
Figure 26.
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD
SMALL-SIGNAL OVERSHOOT
vs CAPACITIVE LOAD
50
45
40
35
30
25
20
15
10
5
50
45
40
35
30
25
20
15
10
5
RS = 0 W
RS = 25 W
RS = 50 W
+15 V
OPA1662
-15 V
RS
VOUT = 100 mVPP
RL
CL
G = −1 V/V
VS = ±1.5 V
RS = 0 W
RS = 25 W
RS = 50 W
VOUT = 100 mVPP
RF = 2 kW
RI = 2 kW
G = +1 V/V
VS = ±1.5 V
+15 V
RS
OPA1662
CL
-15 V
0
0
50
100
150
200
250
300
350
400
0
50
100
150
200
250
300
350
400
Capacitance (pF)
Capacitance (pF)
G034
G033
Figure 27.
Figure 28.
SMALL-SIGNAL OVERSHOOT
vs FEEDBACK CAPACITOR
PERCENT OVERSHOOT
vs CAPACITIVE LOAD
50
50
45
40
35
30
25
20
15
10
5
CF
VS = ±18 V
VS = ±1.5 V
G = +1 V/V
VIN = 100 mVPP
45
40
35
30
25
20
15
10
5
RF = 2 kW
RI = 2 kW
+15 V
VOUT = 100 mVPP
RS
G = +1 V/V
CL = 100 pF
OPA1662
CL
-15 V
VS = ± 18 V
VS = ± 1.5 V
0
0
0
50
100
150
200
250
300
350
400
1
2
3
4
5
Capacitance (pF)
Capacitance (pF)
G037
G021
Figure 29.
Figure 30.
10
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